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Table 2 Clinical outcomes

From: Radiological and clinical outcomes of cervical disc arthroplasty for the elderly: a comparison with young patients

  Mean pre-op VAS neck (SD) Final follow-up (SD) P value Mean pre-op VAS arm (SD) Final follow-up (SD) P value
Elderly group 4.9 (2.67) 2.0 (1.70) 0.002* 4.5 (3.37) 1.9 (2.07) 0.013*
Young group 3.1 (2.68) 2.0 (2.12) 0.020* 2.7 (2.70) 1.0 (1.75) 0.004*
  Mean pre-op NDI (SD) Final follow-up (SD) P value Mean pre-op JOA (SD) Final follow-up (SD) P value
Elderly group 19.2 (12.44) 8.6 (6.50) 0.012* 10.0 (4.45) 13.14 (2.79) 0.009*
Young group 9.9 (7.90) 6.0 (4.34) 0.014* 13.3 (1.67) 16.0 (1.19) <0.001*
  1. VAS Visual Analog scale for pain, NDI Neck Disability Index, JOA Modified Japanese Orthopaedic Association score, SD standard deviation
  2. P value: pair-t test compared to pre-operative scores. *p < 0.05